Cable length

A maximum motor cable length must not be exceeded when connecting a motor.

The following configuration guidelines must be observed:

  • When shielded motor cables are used, a capacitance conductor/shield of maximum 280 pF/m must not be exceeded.

MCB91A-....-5D3..

0025

0040

Maximum motor cable length in m for shielded cable

PWM frequency

4 kHz

8 kHz

16 kHz

 

50

12

No operation possible

 

75

50

15

MCB91A-....-5D3..

0025

0040

Maximum motor cable length in m for unshielded cable

PWM frequency

4 kHz

8 kHz

16 kHz

 

75

18

No operation possible

 

112.5

75

22.5

MCB91A-....-2D1..

0034

0042

Maximum motor cable length in m for shielded cable

PWM frequency

4 kHz

8 kHz

16 kHz

 

75

35

No operation possible

 

75

50

25

MCB91A-....-2D1..

0034

0042

Maximum motor cable length in m for unshielded cable

PWM frequency

4 kHz

8 kHz

16 kHz

 

75

52.5

No operation possible

 

112.5

75

37.5